CVE-2024-27236
📋 TL;DR
This vulnerability allows local attackers to escalate privileges on affected Android devices through memory corruption in the aoc_unlocked_ioctl function. The type confusion flaw enables attackers to gain elevated system privileges without needing user interaction. This primarily affects Google Pixel devices running vulnerable Android versions.
💻 Affected Systems
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with root/system-level access, allowing installation of persistent malware, data theft, and bypassing all security controls.
Likely Case
Local privilege escalation enabling attackers to access sensitive data, install malicious apps, or modify system settings.
If Mitigated
Limited impact with proper patch management and device security policies in place.
🎯 Exploit Status
Exploitation requires local access but no user interaction. Type confusion vulnerabilities typically require specific memory manipulation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: March 2024 Android security patch
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2024-03-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install March 2024 Android security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable unnecessary system components
androidRestrict access to vulnerable driver components through SELinux policies or device management
🧯 If You Can't Patch
- Implement strict device access controls and monitoring
- Use mobile device management (MDM) to restrict app installations and system modifications
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If before March 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level shows 'March 5, 2024' or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts in system logs
- Suspicious ioctl calls to aoc driver
Network Indicators:
- Typically no network indicators as this is local exploitation
SIEM Query:
Look for process elevation events or unusual system calls in Android device logs